Spektrum SPMAR12120 User Manual

Page 14

After Connection

When the transmitter and receiver are turned on and after the receiver connects to

the transmitter and normal control of all channels occurs, if loss of signal occurs

Preset Failsafe drives all servos to their preset failsafe positions. For sailplanes it’s

recommended that the spoilers/flaps deploy to dethermalize the aircraft, preventing

a flyaway. Some modelers prefer to use this failsafe system to program a slight

turn and low throttle to prevent their aircraft from flying away. When the signal is

regained, the system immediately (less than 4 ms) regains control.
Preset Failsafe:
• Prevents unintentional electric motor response on start-up.

• Drives all servos, except for the throttle to their preset failsafe positions, if the

receiver only is powered and no signal is present.

• Establishes preset failsafe servo positions for all channels if the signal is lost.
Programming SmartSafe

During the binding process, the bind plug is left in throughout the process and is

removed only after the receiver connects to the transmitter. After the connection

is made, confirmed by operating the servos, the bind plug can be removed. The

receiver is now programmed for SmartSafe.
Programming Preset Failsafe

During the binding process the bind plug is inserted in the bind port, then the

receiver is powered up. The LEDs in each receiver should blink, indicating that the

receiver is in bind mode. Now before binding the receiver to the transmitter and

with the receiver in bind mode, remove the bind plug. The LEDs will continue to

blink. With the control sticks and switches in the desired failsafe positions, bind

the transmitter to the receiver by putting the transmitter into bind mode. The sys-

tem should connect in less than 15 seconds. The receiver is now programmed for

preset failsafe.
Failsafe positions are stored via the stick and switch positions on the transmitter

during binding.